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Overview
- Bidirectional stacked broadside antenna
- Frequency range: 135-145 MHz
- Gain: 9 dBi
- Vertical polarization
- Durable ABS/FG radome with PU foam filling (IP67 rated)
- Copper radiator for high conductivity
- Mounting for 35-60 mm diameter poles
- VSWR: <1.5
- DC-short circuited for lightning protection
- Operating temperature: -40ºC to +80ºC
Specifications
Connector | N-/TNC-female |
Frequency | 135-145 MHz |
Gain | 9 dBi |
Length | 3270 mm |
Mounting Diameter | Ø 35-60 |
Polarization | vertical |
Radiator Material | copper |
Radome | FG, PU foam |
VSWR | <1.5 |
Weight | 4970 g |
Wind Load | 252 N @ 150 km/h |

CA85B4
bidirectional stacked broadside - Frequency range: 83-88 MHz - Gain: 9 dBi - Polarization: vertical - Connector: N-/TNC-female - VSWR: <1.5 - Radome: ABS/FG PU foam - Radiator material: copper - Mounting: 35-60 mm diameter pole - Wind load: 336 NHow to Install the CA140B4 Controller
This guide provides step-by-step instructions for installing and configuring the CA140B4 Controller, ensuring proper wiring and calibration.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors, Self-amalgamating tape
- Mount the controller
Secure the CA140B4 controller to the designated mounting surface using the provided mounting screws. Ensure it is level and firmly attached.
- Connect the wiring
Use wire strippers to prepare the wires and connect them to the appropriate terminals on the CA140B4 controller. Ensure all connections are tight and secure.
- Seal connections
Cover all connectors and cable junctions with self-amalgamating tape to provide proper weather protection and prevent moisture ingress.
- Verify connections
Use a multimeter to check the continuity of the connections. Ensure there are no shorts or open circuits before powering on the controller.
- Power on the controller
Turn on the power supply to the CA140B4 controller and verify that it powers up correctly, indicated by the status LED.
- Calibrate the controller
Follow the manufacturer's instructions to calibrate the CA140B4 controller settings according to your application requirements.

